package homework.day318.demo1;

public class Main {
    public static void main(String[] args) {
        Car car = new Car();
        car.drive();
        car.biBi();

        SmallCar smallCar = new SmallCar();
        smallCar.drive();
        smallCar.biBi(2);

        Truck truck = new Truck();
        truck.drive();
        truck.biBi(5);
    }
}
